discourse/lib/validators/email_validator.rb

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class EmailValidator < ActiveModel::EachValidator
def validate_each(record, attribute, value)
if (setting = SiteSetting.email_domains_whitelist).present?
unless email_in_restriction_setting?(setting, value) || is_developer?(value)
record.errors.add(attribute, I18n.t(:'user.email.not_allowed'))
end
elsif (setting = SiteSetting.email_domains_blacklist).present?
if email_in_restriction_setting?(setting, value) && !is_developer?(value)
record.errors.add(attribute, I18n.t(:'user.email.not_allowed'))
end
end
if record.errors[attribute].blank? && value && ScreenedEmail.should_block?(value)
record.errors.add(attribute, I18n.t(:'user.email.blocked'))
end
end
def email_in_restriction_setting?(setting, value)
domains = setting.gsub('.', '\.')
regexp = Regexp.new("@(#{domains})", true)
value =~ regexp
end
def is_developer?(value)
Rails.configuration.respond_to?(:developer_emails) && Rails.configuration.developer_emails.include?(value)
end
def self.email_regex
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/^[a-zA-Z0-9!#\$%&'*+\/=?\^_`{|}~\-]+(?:\.[a-zA-Z0-9!#\$%&'\*+\/=?\^_`{|}~\-]+)*@(?:[a-zA-Z0-9](?:[a-zA-Z0-9\-]*[a-zA-Z0-9])?\.)+[a-zA-Z0-9](?:[a-zA-Z0-9\-]*[a-zA-Z0-9])?$/
end
end